$OpenBSD: patch-property_c,v 1.1 2016/10/20 20:25:19 jturner Exp $
--- property.c.orig	Thu Oct 20 16:21:00 2016
+++ property.c	Thu Oct 20 16:21:10 2016
@@ -21,6 +21,7 @@
 #include <assert.h>
 #include <inttypes.h>
 #include <limits.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
